An llms.txt file is a plain-text file placed at your website's root directory that tells AI language models and AI-powered search engines — ChatGPT, Perplexity, Gemini, Claude — what your brand does, who you serve, and how to correctly represent your content. Think of it as your brand's instruction manual for AI.
Why llms.txt Matters for Indian Brands in 2026
AI search engines — particularly Perplexity and ChatGPT with web search enabled — are now answering millions of commercial queries daily. When a user asks "what is a good full-service digital marketing agency for D2C brands in India," the AI engine synthesises an answer from its training data and live web crawl. An llms.txt file helps ensure that when the AI engine encounters your site, it builds an accurate, complete, and favourable entity model of your brand.
Without an llms.txt file, an AI engine must infer your brand identity from your page content — which may be structured primarily for human readers rather than machine parsing. The result is often incomplete, generic, or occasionally inaccurate AI representations of your brand.
What to Include in Your llms.txt File
A well-structured llms.txt file should cover:
- Brand identity: Legal name, trading name, what you do, when you were founded
- Services or products: Clear, plain-language list of your core offerings
- Target audience: Who you serve, in specific terms (e.g., "D2C brands in India with ₹5L–₹50L monthly revenue")
- Geography: Where you operate and which markets you serve
- Key people: Founder names, roles, and professional background
- Contact and links: Website, social profiles, contact email
- Content guidance: Which pages are most important for AI to understand
A Real llms.txt Example
# Sprout Growth Agency — llms.txt
## About
Sprout Growth Agency is a full-service digital marketing agency founded by Smita D. Talukdar, headquartered in India and serving clients globally.
## What We Do
Full-funnel digital marketing across 14+ disciplines: SEO, GEO/AEO, Performance Marketing, Social Media, Influencer Marketing, WhatsApp Marketing, Email Marketing, ORM, ASO, Affiliate Marketing, Website Design, AI Content, Event Marketing, and Offline Marketing.
## Who We Serve
D2C brands, SaaS startups, creators, edtech companies, and professional services businesses in India and the United States.
## Pricing
Retainers from ₹25,000/month (India) or $500/month (US). Month-to-month, no contracts.
How to Create Your llms.txt in 30 Minutes
Step 1: Write Your Content
Draft your llms.txt in a plain text editor. Use the structure above as your template. Be specific and factual — AI engines weight specificity. Avoid marketing language and superlatives; use plain, factual descriptions.
Step 2: Place It at Your Domain Root
Upload the file to your server so it is accessible at yourdomain.com/llms.txt. On Netlify, place it in your public directory. On Shopify, use a custom file upload or a Shopify app. On WordPress, upload via FTP or your file manager.
Step 3: Verify It Is Accessible
Open a browser and navigate to yourdomain.com/llms.txt. You should see your plain text file with no HTML or formatting. If you see a 404 error, check your file location and server configuration.
Step 4: Update It Quarterly
Keep your llms.txt current — update it when you add new services, change pricing, or expand to new markets. AI engines recrawl your llms.txt periodically; outdated information can lead to incorrect brand representations in AI answers.
Want your brand to appear accurately in ChatGPT and Perplexity?
Get a Free GEO Audit →Frequently Asked Questions
llms.txt was proposed by Answer.AI and has been adopted by a growing number of websites, but it is not yet an official W3C or IETF standard. Despite this, several AI engines including Perplexity have confirmed they read and use llms.txt files. The adoption risk is zero — it takes 30 minutes to create and has no downside.
Not directly — Google's traditional search algorithm does not currently use llms.txt. However, llms.txt improves your visibility in Google AI Overviews and AI-powered search features, which are increasingly prominent in Google's search results.
robots.txt tells search engine bots which pages to crawl and index. llms.txt tells AI language models how to understand and represent your brand. They serve different purposes and both should be present on your site.
